CA2062603A1 - One-piece transmission band - Google Patents
One-piece transmission bandInfo
- Publication number
- CA2062603A1 CA2062603A1 CA002062603A CA2062603A CA2062603A1 CA 2062603 A1 CA2062603 A1 CA 2062603A1 CA 002062603 A CA002062603 A CA 002062603A CA 2062603 A CA2062603 A CA 2062603A CA 2062603 A1 CA2062603 A1 CA 2062603A1
- Authority
- CA
- Canada
- Prior art keywords
- strap
- ridge
- band
- apply
- circumference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/12—Friction clutches with an expansible band or coil co-operating with the inner surface of a drum or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/06—Bands, shoes or pads; Pivots or supporting members therefor for externally-engaging brakes
- F16D65/065—Brake bands
- F16D65/067—Brake bands with means for mounting, e.g. end connection members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Package Frames And Binding Bands (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention provides for a one-piece band member (10) for use with transmissions. The band member (10) is integrally constructed having the end portions (16) of a strap member (12) being formed an apply member (18) and a reaction member (20) and then folded (22) back over the outer circumference of the strap member (12) to provide a unitary unit. A friction lining (14) is secured around the inner circumference of the strap member (12).
The present invention provides for a one-piece band member (10) for use with transmissions. The band member (10) is integrally constructed having the end portions (16) of a strap member (12) being formed an apply member (18) and a reaction member (20) and then folded (22) back over the outer circumference of the strap member (12) to provide a unitary unit. A friction lining (14) is secured around the inner circumference of the strap member (12).
Description
~0~2~3 ONE-PIECE TRANSMISSION BAND
TECHNICAL FIELD
The present in~rention rel~tes to a trarJsmi3sion band intended for use with an automatlc transmission as~embly ~nd which is disposed to control movement o~ rotating transmi~ion members. The circumference of the b~nd is nexible and ~s changed by actusting apply and reaction members integrally formed on the end~ o~ the 2 o band.
RELATED APPLI(::Al~ONS
llli3 ~pplicatlon LS a continuation in-part of co-pending applicatIon Ser~l Nos. 508,864, filed April 12, l9gU ~nd 071546,161, 25 filed June 28, 1990. All subject rnatter contained in the parent applicatlons is expressly incorporated herein in Its entirety.
BACKGROUND ART ?
Trsnsmission bands are used to act as a brflke or clutch to stop 30 a rotating drum member of a transmission. The interisr circumference of a transmission band is usually lined with a ~riction material to assist in achieving the smooth ces~tion o~ drum rotation.
The ends of a transmission band generally have brackets or luKs known as ~pply ~m3 reaceion members which are used to anchor the 35 band member snd engQge apply pin members located within the transmisslon. The reaction member is usually anchored and the apply ' ' 2~2~3 pin engages the apply member to push the apply member toward the reaction member, thereby decre~sing the circumference of the band and causing the band to frictionally engage the rotating members or drums within the transmission to brake those members to a stop.
Commonly, prior art transmission bands h~ve been dtssigned to provide endurance under the stressful, repetitive conditions ~ound in the operation of a transmission. Most often the~e heavy, thick, band3 have a thickness or gauge OI around .080 inches (0.20cm), allowing the band to enjoy a long life and yet provide some flexibility during application of the bsnd to the rotating tran~mission drums. However, with the advent of higher fuel cost~ and automotive manuracturing demands for fuel efficiencyJ recent research hu~ centered around producing trRnsmission bands of lighter weight materials and thlnner cros~ sections. Development of these llghter weight bands having thinner cross section design~ has been plagued by inereased problems in the overall quality of the transmission band3 and their ~bility to per~orm the required repetitive and stress~ul functions.
A typical ~ingle wrap transmission band i~ formed as a strip of sheet metQl haYing a friction lining adh4red about the interio~
circumference with separate ~pply and re~ction members &ttached to 25 the end~ o~ the strap member The apply and reaction members ~re commonly manufactured as formed brackets which are ~ecured to the strap by an appropriate form of attflchment ~uch as a tab IRnce, extrusion, spot weld, or structural adhesive. The application of the~e heavy forged apply snd reaction members to the lighter, thinner 30 straps i~, howeYer, counter~roductive to meeting the demands o~ the automotive manufacturers for lighter weight components. The prior art forged apply and reaction brackets not only have a relatively thick cros~ section and substantial added weight, they interfere with the potential for enhanced operation characteristics of the 35 transmission band. Transmission b.snds manufactured from a thinner gauge sheet metal have enhanced operational characteristic~ when , ..
~2~
comp~red to the prior art thicker gsuge bunds especially in the ability of the band to conform to the rotating drums of the transmis~ion and wear evenly about the band. Bands manllfactured with the thick forged ~pply and reaction bracket~, however, do not have the desired flexibility toward the ends of the band where the apply and reaction members are attached and the band, therefore, does not engage, with uniformity, around the rotating transmission pieces. Thus, there is an enhanced possibility of uneven wear of the transmission bands.
Problems have also been encountered with known transmission bands that have been designed to incorporate lighter-weight apply and reaction brackets. A noticeably reduced ability in the load carrying cap~bility of the transmission b~nd commonly results from a premature f~ilure of the band due to ~tres~ and ~tigue of the lighter-weight apply and reaction members.
Therefore, it is an object of this invention to provide a transmission band which engages the rotating tran~mis~ion members with greater con~ormity than current bands.
A further object of this invention i~ to provide a llghtweight, one-piece transmission band having the apply and reaction member integrally formed in the bsse materisl.
Yet another object of this invention is to provide a lightweight, one-piece transmission band having load carrying capabillties At leagt as good if not better that those of the heavier common prior art band~.
DISCLOSURE OF THE INYENTION
The present invention ~chieves these objectives by providing for a lightweight, one-piece transmission band wherein the apply and re~ctlon members are integrally formed in the strap material. The 3 5 construction of the one-piece transmission band~ of the present invention provides a band having similar and enhanced load carrying . , ' :.' ' ' ' ' 89029A ~ 4~
capabilities when compared to the heaYier prior &rt band and further enables the transmission band to more uniformly engage the circumference of a transmi~sion member when applied against the rotating transmission member. The apply and reaction members of the present band are formed on the ends of the band where the strap material has been folded 1û0 fiat back over the outer eircumference of the strap. The ends of the strap where the apply and reaction member~ are located are then double in thickness. The folded over end portions are adhered to the strap in an acceptable manner.
The advantages of the present invention and the ability of the present Invention to meet the objective~ are best understood with reference to the attached drawings and the following detailed description of the best mode for carrying out the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
~ .
Fig. 1 is a side view of a transmission bsnd of the present invention having a formed apply member and volcano-type reaction me mber.
Fig. 2 is a detailed view of the reaction member of the band o~
Flg. 1 t~ken along- line 2-2 of Fig. 1.
Fig. 3 b a detailed view o~ the apply member of the band of Flg. 1 taken along llne 3-3 o~ Fig. 1.
Fig. 4 1~ a side view of an alternative embodiment of the transmission b~nd of the present invention fllso showing the Apply pin and re~ction pin in gho~t detail.
Flg. S is a front view of the transmission band of Flg. 4.
Fig. 6 Is a side view of a second alternative embodirnent of the trsnsmission band of the present invention.
Fig. 7 is a detailed view oî the reactlon member of the band of Fig. 6 taken along line 7-7 of Fig. 6.
Fig. 8 is a detailed view of the apply member of the b~nd of Fig. 6 taken along line 8-8 of Fig. 6.
~ ~ .
2 ~
Fig. 9 is Q top view of an ~lternative embodiment of the apply member of the bands of Figs. 1~ 4, or 6.
Fig. 10 is A side view of the apply member of Fig. 9.
Fig. I l is a sectional view of the apply member o~ Fig. 9 taken along line 11-11 of Fig. 9.
BEST MODE OF CAR~YING OUT INYENTION
Referring now with p~rticularity to the drawlng~, band Q~semblie~ 10 constructed in accord~nce with the present invention are generally shown. A strap member 12 i~ forrned, usu~lly from an elongated ~trip of sheet metal, and i~ arran3~ed in a circular configuration so as to conform with the circular transmission drum tnot shown). The sheet metal material from which the strap ia îormed preferably has a gauge of .040 inches (O.lOcm) to .050 inches (0.13cm), approximately one~h~lf the accepted thicknes~ or gauge of ~tandard prior art transmission bands. This dramatlc reductlon in gauge produces a lightweight bsnd having gre~tly enhanced friction perform~nce and coastdown characteri~tics. The strap member 12 include~ a friction llning 14 suitably adhered to the inner circumference of the strap member 12. The end portions 16 of the strap member 12 are Çormed by any suitable proce~s9 to be discussed in detsil, Into the appropriate and desired spply member 18 and reaction member 20.
Referring now to Figs. 1-3, a preferred embodiment of the band member 10 i~ shown. The b~nd member includes a strap member 12 O having a friction member 14 adhered to the inner circumference oî
the ~trsp member 12. The spply member 18, shown in detail In Flg.
3, is formed on the inner circumference OI an end portion 16. The Qpply member 18 is formed with a folded ridge 19 having a pockeS 21 îor receiving the appiy pin. A reinforcing gusset or rib 23 is provided 35 on the opposed or outward side of the pocket 21 to reinforce the contact point for the apply pin. Referring now to Fig~. 9-11, an '` ' `. ' . :
.: ,' ' ' ~ : ' ~: ' ' ` ' .
2 ~
fllternative embodiment of the formed Qpply bracket 18 Is shown.
The bracket 18 is generally formed in the same manner fl9 the bracket 18 of Figs. 1-3. However, a reinforcing fold 25 is formed in the rear or outward side of the pocket 21 and replaces the gusset 23.
The reinforcing fold 25 acts to widen the acceptable zone oî apply pin placement. After the spply member 18 is formed, the end portion 16 i~ folded 22 nat 180 back over the outer circumference oî the strap member 12 and adhered 24 thereto by any suitable fastening method. The remaining end portion 16 also is folded 22 flat 180 back o~er the outer circumference of the strap member 12 and 15 adhered 24 thereto~ As shown in Flg. 2, ~he reactlon member 20 i~
formed by puncturing the combined strap member 12 and folded over end portion 16. The reaction member 20 of Figs. 1-3 i9 a vo~cano-type member which i de~cribed in detail in co-pendlng ~pplic~tlon Serial No. 07/546,161~ filed June 28, 1990, the subject matter of 20 which is incorporated herein in its entiretyO
Referring now to Fig3. 4 and 5, an alternative embodiment of the b~nd member 110 include~ a strap member 112 having a frictlon lining 11~ suitably ~dhered to its inner circumference. The apply member 118 and the reaction member 120 are formed on the end 25 portlons 116 on the inner circum~erence of the strap member 112.
The apply member 118 and reaction member~ 120 of this embodiment are formed in the same îashion as the apply member 18 of Flgs. 1 and 3. Again, the member 118, 120 may include a reinforcing gusset 123 or, alternatively, a reinforcing fold ~s previously di~cussed with 30 regard to Figs. 1, 3 and 6. After forming the apply member 118 and re~ction member 120, the end portion~ 116 o~ the 3trap member are folded 122 nat 180C back over the outer circumference of the strap member 112 so that the apply member 118 and reaction member 120 are located in the outer circumference of the strap member 112 35 proximate the fold area 122~ The folded over end portions 116 are then attached to the strap member by any suitable means of adheslon 2~3 89029~ _ 7 _ 124 such ~s extrusion, tap lance, spot welding or the ~pplication of a structural ~dhesive. Also shown in Fig. 4, in ghost, is the proximate locations for the push pin 126 AS it is engaged with the pocket 121 of the apply member 118 and an anchor pin 128 as it is engaged with the pocket 121 of the reaction member 120.
Referring now to Figs~ 6-8, yet another alternative of the present inventlon is shown. The band member 21û include~ a strap member 212 having a friction lining 21~ suitably adhered to its inner circumference. The apply member 218 is formed on one end 216 of the strap member 212 and folded 222 flMt 180 back ~ver the outer 15 circumference of the strap member 212 and &dhered 224 thereto AS
previously discussed with regard to Figs. 1, 3, 4, 5 and 6. The reaction member 220 is formed as a hoop 221 which is applicable in use where the anticipated londs on the b~nd are not very large or where slot openings In the transmission are speci~ically designed to 20 accept the hoop to minimize ~tresses. The end portion 216 o the reactlon member 220 is flattened against the strap 212 and again adhered 224 thereto AS previously discussed.
The above descriptions of the preferred and alternatlve embodiments of the present invention are intended to be illustrative 25 and are not intended to be limiting upon the scope and content of the following claims.
TECHNICAL FIELD
The present in~rention rel~tes to a trarJsmi3sion band intended for use with an automatlc transmission as~embly ~nd which is disposed to control movement o~ rotating transmi~ion members. The circumference of the b~nd is nexible and ~s changed by actusting apply and reaction members integrally formed on the end~ o~ the 2 o band.
RELATED APPLI(::Al~ONS
llli3 ~pplicatlon LS a continuation in-part of co-pending applicatIon Ser~l Nos. 508,864, filed April 12, l9gU ~nd 071546,161, 25 filed June 28, 1990. All subject rnatter contained in the parent applicatlons is expressly incorporated herein in Its entirety.
BACKGROUND ART ?
Trsnsmission bands are used to act as a brflke or clutch to stop 30 a rotating drum member of a transmission. The interisr circumference of a transmission band is usually lined with a ~riction material to assist in achieving the smooth ces~tion o~ drum rotation.
The ends of a transmission band generally have brackets or luKs known as ~pply ~m3 reaceion members which are used to anchor the 35 band member snd engQge apply pin members located within the transmisslon. The reaction member is usually anchored and the apply ' ' 2~2~3 pin engages the apply member to push the apply member toward the reaction member, thereby decre~sing the circumference of the band and causing the band to frictionally engage the rotating members or drums within the transmission to brake those members to a stop.
Commonly, prior art transmission bands h~ve been dtssigned to provide endurance under the stressful, repetitive conditions ~ound in the operation of a transmission. Most often the~e heavy, thick, band3 have a thickness or gauge OI around .080 inches (0.20cm), allowing the band to enjoy a long life and yet provide some flexibility during application of the bsnd to the rotating tran~mission drums. However, with the advent of higher fuel cost~ and automotive manuracturing demands for fuel efficiencyJ recent research hu~ centered around producing trRnsmission bands of lighter weight materials and thlnner cros~ sections. Development of these llghter weight bands having thinner cross section design~ has been plagued by inereased problems in the overall quality of the transmission band3 and their ~bility to per~orm the required repetitive and stress~ul functions.
A typical ~ingle wrap transmission band i~ formed as a strip of sheet metQl haYing a friction lining adh4red about the interio~
circumference with separate ~pply and re~ction members &ttached to 25 the end~ o~ the strap member The apply and reaction members ~re commonly manufactured as formed brackets which are ~ecured to the strap by an appropriate form of attflchment ~uch as a tab IRnce, extrusion, spot weld, or structural adhesive. The application of the~e heavy forged apply snd reaction members to the lighter, thinner 30 straps i~, howeYer, counter~roductive to meeting the demands o~ the automotive manufacturers for lighter weight components. The prior art forged apply and reaction brackets not only have a relatively thick cros~ section and substantial added weight, they interfere with the potential for enhanced operation characteristics of the 35 transmission band. Transmission b.snds manufactured from a thinner gauge sheet metal have enhanced operational characteristic~ when , ..
~2~
comp~red to the prior art thicker gsuge bunds especially in the ability of the band to conform to the rotating drums of the transmis~ion and wear evenly about the band. Bands manllfactured with the thick forged ~pply and reaction bracket~, however, do not have the desired flexibility toward the ends of the band where the apply and reaction members are attached and the band, therefore, does not engage, with uniformity, around the rotating transmission pieces. Thus, there is an enhanced possibility of uneven wear of the transmission bands.
Problems have also been encountered with known transmission bands that have been designed to incorporate lighter-weight apply and reaction brackets. A noticeably reduced ability in the load carrying cap~bility of the transmission b~nd commonly results from a premature f~ilure of the band due to ~tres~ and ~tigue of the lighter-weight apply and reaction members.
Therefore, it is an object of this invention to provide a transmission band which engages the rotating tran~mis~ion members with greater con~ormity than current bands.
A further object of this invention i~ to provide a llghtweight, one-piece transmission band having the apply and reaction member integrally formed in the bsse materisl.
Yet another object of this invention is to provide a lightweight, one-piece transmission band having load carrying capabillties At leagt as good if not better that those of the heavier common prior art band~.
DISCLOSURE OF THE INYENTION
The present invention ~chieves these objectives by providing for a lightweight, one-piece transmission band wherein the apply and re~ctlon members are integrally formed in the strap material. The 3 5 construction of the one-piece transmission band~ of the present invention provides a band having similar and enhanced load carrying . , ' :.' ' ' ' ' 89029A ~ 4~
capabilities when compared to the heaYier prior &rt band and further enables the transmission band to more uniformly engage the circumference of a transmi~sion member when applied against the rotating transmission member. The apply and reaction members of the present band are formed on the ends of the band where the strap material has been folded 1û0 fiat back over the outer eircumference of the strap. The ends of the strap where the apply and reaction member~ are located are then double in thickness. The folded over end portions are adhered to the strap in an acceptable manner.
The advantages of the present invention and the ability of the present Invention to meet the objective~ are best understood with reference to the attached drawings and the following detailed description of the best mode for carrying out the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
~ .
Fig. 1 is a side view of a transmission bsnd of the present invention having a formed apply member and volcano-type reaction me mber.
Fig. 2 is a detailed view of the reaction member of the band o~
Flg. 1 t~ken along- line 2-2 of Fig. 1.
Fig. 3 b a detailed view o~ the apply member of the band of Flg. 1 taken along llne 3-3 o~ Fig. 1.
Fig. 4 1~ a side view of an alternative embodiment of the transmission b~nd of the present invention fllso showing the Apply pin and re~ction pin in gho~t detail.
Flg. S is a front view of the transmission band of Flg. 4.
Fig. 6 Is a side view of a second alternative embodirnent of the trsnsmission band of the present invention.
Fig. 7 is a detailed view oî the reactlon member of the band of Fig. 6 taken along line 7-7 of Fig. 6.
Fig. 8 is a detailed view of the apply member of the b~nd of Fig. 6 taken along line 8-8 of Fig. 6.
~ ~ .
2 ~
Fig. 9 is Q top view of an ~lternative embodiment of the apply member of the bands of Figs. 1~ 4, or 6.
Fig. 10 is A side view of the apply member of Fig. 9.
Fig. I l is a sectional view of the apply member o~ Fig. 9 taken along line 11-11 of Fig. 9.
BEST MODE OF CAR~YING OUT INYENTION
Referring now with p~rticularity to the drawlng~, band Q~semblie~ 10 constructed in accord~nce with the present invention are generally shown. A strap member 12 i~ forrned, usu~lly from an elongated ~trip of sheet metal, and i~ arran3~ed in a circular configuration so as to conform with the circular transmission drum tnot shown). The sheet metal material from which the strap ia îormed preferably has a gauge of .040 inches (O.lOcm) to .050 inches (0.13cm), approximately one~h~lf the accepted thicknes~ or gauge of ~tandard prior art transmission bands. This dramatlc reductlon in gauge produces a lightweight bsnd having gre~tly enhanced friction perform~nce and coastdown characteri~tics. The strap member 12 include~ a friction llning 14 suitably adhered to the inner circumference of the strap member 12. The end portions 16 of the strap member 12 are Çormed by any suitable proce~s9 to be discussed in detsil, Into the appropriate and desired spply member 18 and reaction member 20.
Referring now to Figs. 1-3, a preferred embodiment of the band member 10 i~ shown. The b~nd member includes a strap member 12 O having a friction member 14 adhered to the inner circumference oî
the ~trsp member 12. The spply member 18, shown in detail In Flg.
3, is formed on the inner circumference OI an end portion 16. The Qpply member 18 is formed with a folded ridge 19 having a pockeS 21 îor receiving the appiy pin. A reinforcing gusset or rib 23 is provided 35 on the opposed or outward side of the pocket 21 to reinforce the contact point for the apply pin. Referring now to Fig~. 9-11, an '` ' `. ' . :
.: ,' ' ' ~ : ' ~: ' ' ` ' .
2 ~
fllternative embodiment of the formed Qpply bracket 18 Is shown.
The bracket 18 is generally formed in the same manner fl9 the bracket 18 of Figs. 1-3. However, a reinforcing fold 25 is formed in the rear or outward side of the pocket 21 and replaces the gusset 23.
The reinforcing fold 25 acts to widen the acceptable zone oî apply pin placement. After the spply member 18 is formed, the end portion 16 i~ folded 22 nat 180 back over the outer circumference oî the strap member 12 and adhered 24 thereto by any suitable fastening method. The remaining end portion 16 also is folded 22 flat 180 back o~er the outer circumference of the strap member 12 and 15 adhered 24 thereto~ As shown in Flg. 2, ~he reactlon member 20 i~
formed by puncturing the combined strap member 12 and folded over end portion 16. The reaction member 20 of Figs. 1-3 i9 a vo~cano-type member which i de~cribed in detail in co-pendlng ~pplic~tlon Serial No. 07/546,161~ filed June 28, 1990, the subject matter of 20 which is incorporated herein in its entiretyO
Referring now to Fig3. 4 and 5, an alternative embodiment of the b~nd member 110 include~ a strap member 112 having a frictlon lining 11~ suitably ~dhered to its inner circumference. The apply member 118 and the reaction member 120 are formed on the end 25 portlons 116 on the inner circum~erence of the strap member 112.
The apply member 118 and reaction member~ 120 of this embodiment are formed in the same îashion as the apply member 18 of Flgs. 1 and 3. Again, the member 118, 120 may include a reinforcing gusset 123 or, alternatively, a reinforcing fold ~s previously di~cussed with 30 regard to Figs. 1, 3 and 6. After forming the apply member 118 and re~ction member 120, the end portion~ 116 o~ the 3trap member are folded 122 nat 180C back over the outer circumference of the strap member 112 so that the apply member 118 and reaction member 120 are located in the outer circumference of the strap member 112 35 proximate the fold area 122~ The folded over end portions 116 are then attached to the strap member by any suitable means of adheslon 2~3 89029~ _ 7 _ 124 such ~s extrusion, tap lance, spot welding or the ~pplication of a structural ~dhesive. Also shown in Fig. 4, in ghost, is the proximate locations for the push pin 126 AS it is engaged with the pocket 121 of the apply member 118 and an anchor pin 128 as it is engaged with the pocket 121 of the reaction member 120.
Referring now to Figs~ 6-8, yet another alternative of the present inventlon is shown. The band member 21û include~ a strap member 212 having a friction lining 21~ suitably adhered to its inner circumference. The apply member 218 is formed on one end 216 of the strap member 212 and folded 222 flMt 180 back ~ver the outer 15 circumference of the strap member 212 and &dhered 224 thereto AS
previously discussed with regard to Figs. 1, 3, 4, 5 and 6. The reaction member 220 is formed as a hoop 221 which is applicable in use where the anticipated londs on the b~nd are not very large or where slot openings In the transmission are speci~ically designed to 20 accept the hoop to minimize ~tresses. The end portion 216 o the reactlon member 220 is flattened against the strap 212 and again adhered 224 thereto AS previously discussed.
The above descriptions of the preferred and alternatlve embodiments of the present invention are intended to be illustrative 25 and are not intended to be limiting upon the scope and content of the following claims.
Claims (12)
1. A band member 10 for use as circumferential friction brake about a rotating member comprising: a strap member 12, having two end portions 16, extending in a generally circular configuration to form an inner strap circumference and an outer strap circumference, said end portions 16 being folded flat 22 back over the outer strap circumference to form a double thickness of such strap member 12 at said end portions 16; a friction lining 14 adhered to such inner strap circumference; an apply member 18 formed from one of said end portions 16; and a reaction member 20 formed from the remaining end portion 16.
2. The band member of claim 1, wherein said apply member 18 is formed from said strap member 12 by forming a ridge 19 into said strap member 12, said ridge being upraised from such inner circumference, folding 22 said ridge 19 flat back over the outer strap circumference and adhering such folded over ridge 19 to said strap member 12.
3. The band member of claim 2, wherein said ridge 19 includes a pocket 21 formed therein for receiving and guiding an apply pin located in the transmission proximate the apply member 18.
4. The band member of claim 2, wherein said ridge 19 includes a reinforcing gusset 23 located opposite the area of contact by an apply pin located in the transmission proximate the supply member 18.
5. The band member of claim 2, wherein said ridge 19 includes a reinforcing fold 25 of said strap member 12 located in opposition to the area of contact by an apply pin located in the transmission proximate the apply member 18.
6. The band member of claim 1, wherein said strap member 12 is between .040 inches (0.10cm) and .050 inches (0.13cm) in thickness.
7. The band member of claim 1, wherein said reaction member 120 is formed from said strap member 112 by forming a ridge 119 into said strap member 112, said ridge being upraised from such inner circumference, folding 122 said ridge 119 flat back over the outer strap circumference and adhering such folded over ridge 119 to said strap member 112.
8. The band member of claim 7, wherein said ridge 119 includes a pocket 121 formed therein for receiving and guiding an anchor pin located in the transmission proximate the reaction member 120.
9. The band member of claim 7, wherein said ridge 119 includes a reinforcing gusset 123 located opposite the area of contact of the anchor pin located in the transmission proximate the reaction member 120.
10. The band member of claim 2, wherein said ridge 119 includes a reinforcing fold 125 of said strap member 112 located in opposition to the area of contact of an anchor pin located in the transmission proximate the reaction member 120.
11. The band member of claim 2, wherein said reaction member 20 is formed from said double thickness of said strap member 12 by piercing said double thickness of strap material 12 to form an aperture therethrough.
12. The band member of claim 2, wherein said reaction member 220 is formed by folding said strap member beck over onto its outer circumference to form e hoop portion 221 and a flat portion adjacent said hoop portion 221 and positioned flat on the outer circumference of said strap member for adherence thereto.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72342991A | 1991-06-28 | 1991-06-28 | |
| US723,429 | 1991-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2062603A1 true CA2062603A1 (en) | 1992-12-29 |
Family
ID=24906231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002062603A Abandoned CA2062603A1 (en) | 1991-06-28 | 1992-03-10 | One-piece transmission band |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0520614B1 (en) |
| JP (1) | JPH05126176A (en) |
| KR (1) | KR100275231B1 (en) |
| CA (1) | CA2062603A1 (en) |
| DE (1) | DE69208750T2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102289140B1 (en) * | 2019-12-03 | 2021-08-13 | 현대오트론 주식회사 | Method for executing software in electronic device and electronic device thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1253965B (en) * | 1962-11-26 | 1967-11-09 | Clark Maschinenfabrik Ges Mit | Band brake with a brake lining made of sintered metal, in particular as a parking brake for motor vehicles |
| US3399749A (en) * | 1966-10-31 | 1968-09-03 | Borg Warner | Flexible resilient brake band |
| US3893225A (en) * | 1972-11-06 | 1975-07-08 | Caterpillar Tractor Co | Method for making a band brake |
| US4053032A (en) * | 1976-10-15 | 1977-10-11 | J. I. Case Company | Self-actuating brake linkage |
| US5078237A (en) * | 1990-06-28 | 1992-01-07 | Borg-Warner Automotive Transmission & Engine Components Corporation | Automatic transmission bands |
| CA2035918A1 (en) * | 1990-04-12 | 1991-10-13 | Christopher P. Puchalla | One-piece transmission band having the apply and reaction members integrally formed in the base material |
-
1992
- 1992-03-10 CA CA002062603A patent/CA2062603A1/en not_active Abandoned
- 1992-03-26 KR KR1019920004885A patent/KR100275231B1/en not_active IP Right Cessation
- 1992-05-08 JP JP4116111A patent/JPH05126176A/en active Pending
- 1992-05-18 DE DE69208750T patent/DE69208750T2/en not_active Expired - Fee Related
- 1992-05-18 EP EP92304465A patent/EP0520614B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05126176A (en) | 1993-05-21 |
| EP0520614A3 (en) | 1993-08-04 |
| DE69208750D1 (en) | 1996-04-11 |
| DE69208750T2 (en) | 1996-07-18 |
| KR930000853A (en) | 1993-01-15 |
| KR100275231B1 (en) | 2000-12-15 |
| EP0520614A2 (en) | 1992-12-30 |
| EP0520614B1 (en) | 1996-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5899827A (en) | Loading cam for continuously variable toroidal transmissions | |
| PL326611A1 (en) | Friction clutch with a lining wear compensating corrector, primarily for use in automotive vehicles | |
| WO1995027153A1 (en) | Clutch | |
| US5012905A (en) | Double wrap brake band and its manufacturing method | |
| US4757880A (en) | Strap configuration for a reverse double wrap band | |
| CA2078531A1 (en) | Blind rivet | |
| CA2062603A1 (en) | One-piece transmission band | |
| US5346040A (en) | One-piece transmission band | |
| US4944376A (en) | Brake band drum for planetary gear-type transmissions | |
| EP0464995B1 (en) | Brake band for transmission assembly | |
| US4565668A (en) | Method of making powder-metallurgical articles | |
| DE19549388A1 (en) | Friction clutch for motor vehicle | |
| EP0451937A1 (en) | One-piece transmission band having the apply and reaction members integrally formed in the base material | |
| CA2165049A1 (en) | Clutch Plate For Automatic Transmissions | |
| US5467849A (en) | Brake band | |
| US5263557A (en) | Anchor for automatic transmission bands | |
| CA2193163A1 (en) | Transmission band assembly | |
| EP0594601B1 (en) | Method of making a web for manufacturing gaskets | |
| EP0544406B1 (en) | Improved anchor in automatic transmission bands | |
| DE4019493A1 (en) | Driving disc for vehicle fitment - incorporates electromagnetic coupling, with coil joined to support | |
| US3747713A (en) | Brake band end connection and method of manufacture | |
| CA1248885A (en) | Strap configuration for a double wrap band | |
| CA1248883A (en) | Bracket assembly for a double wrap band | |
| CA2193786A1 (en) | Transmission band assembly | |
| CA1231202A (en) | Belt having corresponding front and back surfaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |